311940783

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 571870208

約数和(自身を除く): 259929425

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 151, 231, 271, 363, 453, 693, 813, 847, 1057, 1089, 1359, 1661, 1897, 2439, 2541, 2981, 3171, 4983, 5691, 7623, 8943, 9513, 11627, 14949, 17073, 18271, 20867, 26829, 32791, 34881, 40921, 54813, 62601, 98373, 104643, 122763, 127897, 164439, 187803, 229537, 286447, 295119, 368289, 383691, 450131, 688611, 859341, 1151073, 1350393, 2065833, 2578023, 3150917, 4051179, 4951441, 9452751, 14854323, 28358253, 34660087, 44562969, 103980261, 311940783]

約数ペア:

[(1, 311940783), (3, 103980261), (7, 44562969), (9, 34660087), (11, 28358253), (21, 14854323), (33, 9452751), (63, 4951441), (77, 4051179), (99, 3150917), (121, 2578023), (151, 2065833), (231, 1350393), (271, 1151073), (363, 859341), (453, 688611), (693, 450131), (813, 383691), (847, 368289), (1057, 295119), (1089, 286447), (1359, 229537), (1661, 187803), (1897, 164439), (2439, 127897), (2541, 122763), (2981, 104643), (3171, 98373), (4983, 62601), (5691, 54813), (7623, 40921), (8943, 34881), (9513, 32791), (11627, 26829), (14949, 20867), (17073, 18271)]